3949889493 has 8 divisors (see below), whose sum is σ = 5745293856. Its totient is φ = 2393872400.

The previous prime is 3949889441. The next prime is 3949889519.

3949889493 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3949889493 - 2¹⁰ = 3949888469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949889413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59846778 + ... + 59846843.

It is an arithmetic number, because the mean of its divisors is an integer number (718161732).

Almost surely, 2^3949889493 is an apocalyptic number.

3949889493 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3949889493 is a deficient number, since it is larger than the sum of its proper divisors (1795404363).

3949889493 is a wasteful number, since it uses less digits than its factorization.

3949889493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119693635.

The product of its digits is 60466176, while the sum is 66.

The square root of 3949889493 is about 62848.1462972457. The cubic root of 3949889493 is about 1580.7443873970.

The spelling of 3949889493 in words is "three billion, nine hundred forty-nine million, eight hundred eighty-nine thousand, four hundred ninety-three".